EP4375267A4 - Verfahren zur herstellung von bis-2-hydroxyethylterephthalat durch kontinuierliche depolymerisation - Google Patents

Verfahren zur herstellung von bis-2-hydroxyethylterephthalat durch kontinuierliche depolymerisation

Info

Publication number
EP4375267A4
EP4375267A4 EP23839817.6A EP23839817A EP4375267A4 EP 4375267 A4 EP4375267 A4 EP 4375267A4 EP 23839817 A EP23839817 A EP 23839817A EP 4375267 A4 EP4375267 A4 EP 4375267A4
Authority
EP
European Patent Office
Prior art keywords
bis
preparation
hydroxyethyl terephthalate
continuous depolymerization
depolymerization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23839817.6A
Other languages
English (en)
French (fr)
Other versions
EP4375267A1 (de
Inventor
Ji-Hun Kim
Kwang-Woo Park
Seong-Ki Lee
Joong Ki Lee
Yuntae Jin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SK Chemicals Co Ltd
Original Assignee
SK Chemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SK Chemicals Co Ltd filed Critical SK Chemicals Co Ltd
Publication of EP4375267A1 publication Critical patent/EP4375267A1/de
Publication of EP4375267A4 publication Critical patent/EP4375267A4/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
    • C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
    • C08J11/24—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/56—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C07C69/80—Phthalic acid esters
    • C07C69/82—Terephthalic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
EP23839817.6A 2022-07-11 2023-06-15 Verfahren zur herstellung von bis-2-hydroxyethylterephthalat durch kontinuierliche depolymerisation Pending EP4375267A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220085160A KR102504202B1 (ko) 2022-07-11 2022-07-11 연속식 해중합을 통한 비스-2-하이드록시에틸테레프탈레이트의 제조방법
PCT/KR2023/008268 WO2024014723A1 (ko) 2022-07-11 2023-06-15 연속식 해중합을 통한 비스-2-하이드록시에틸테레프탈레이트의 제조방법

Publications (2)

Publication Number Publication Date
EP4375267A1 EP4375267A1 (de) 2024-05-29
EP4375267A4 true EP4375267A4 (de) 2025-10-15

Family

ID=85329474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23839817.6A Pending EP4375267A4 (de) 2022-07-11 2023-06-15 Verfahren zur herstellung von bis-2-hydroxyethylterephthalat durch kontinuierliche depolymerisation

Country Status (7)

Country Link
US (1) US20240270928A1 (de)
EP (1) EP4375267A4 (de)
JP (1) JP7780639B2 (de)
KR (1) KR102504202B1 (de)
CN (1) CN118284592B9 (de)
TW (1) TW202411325A (de)
WO (1) WO2024014723A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102504202B1 (ko) * 2022-07-11 2023-02-27 에스케이케미칼 주식회사 연속식 해중합을 통한 비스-2-하이드록시에틸테레프탈레이트의 제조방법
KR20250028916A (ko) * 2023-08-22 2025-03-04 에스케이케미칼 주식회사 황색도가 낮은 재생 bhet 및 폴리에스테르 수지의 제조방법
KR20250032548A (ko) * 2023-08-31 2025-03-07 에스케이케미칼 주식회사 재생 원료 조성물의 제조방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002332379A (ja) * 2001-03-09 2002-11-22 Kubota Corp ポリエチレンテレフタレートの解重合方法
JP2003055300A (ja) * 2001-08-17 2003-02-26 Is:Kk ビス−β−ヒドロキシエチルテレフタレートの製造法
IT202000008935A1 (it) * 2020-04-24 2021-10-24 Garbo S R L Processo per depolimerizzare polietilene tereftalato (pet) tramite glicolisi, e relativo impianto per la sua realizzazione.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6710202B2 (en) * 2000-02-04 2004-03-23 Aies Co., Ltd. Process for production of high-purity bis-β-hydroxyethyl terephthalate
KR20120128480A (ko) * 2011-05-17 2012-11-27 웅진케미칼 주식회사 폐폴리에스테르를 이용한 재생 폴리에스테르 및 그 제조방법
FR3053691B1 (fr) * 2016-07-05 2018-08-03 IFP Energies Nouvelles Procede de depolymerisation d'un polyester comprenant du polyethylene terephtalate opaque
CN110590551A (zh) * 2018-06-13 2019-12-20 再生聚酯研究有限公司 双(2-羟基乙基)对苯二甲酸酯的制造方法及聚对苯二甲酸乙二醇酯的制造方法
WO2020149798A1 (en) * 2019-01-15 2020-07-23 Köksan Pet Ve Plasti̇k Ambalaj Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Chemical glycolysis method in which transparent pet wastes are recycled to be used in bottle-grade pet resin production
CN110511137B (zh) 2019-07-10 2020-06-26 艾凡佳德(上海)环保科技有限公司 一种废旧聚酯材料连续醇解连续酯交换回收方法
CN110527138B (zh) 2019-07-10 2020-07-03 艾凡佳德(上海)环保科技有限公司 一种废旧聚酯的连续醇解回收方法
GB2586249B (en) 2019-08-13 2021-09-22 Poseidon Plastics Ltd Polymer recycling
KR20210066507A (ko) * 2019-11-28 2021-06-07 롯데케미칼 주식회사 폐기물 재활용을 통한 bhet 제조 방법
KR20210067554A (ko) * 2019-11-29 2021-06-08 롯데케미칼 주식회사 폐 pet의 화학적 재활용 방법
WO2022003990A1 (ja) * 2020-06-29 2022-01-06 株式会社シンテック 高純度ビス－（２－ヒドロキシエチル）テレフタレートの製造方法、再生ポリエチレンテレフタレート、脱色溶媒およびビス－（２－ヒドロキシエチル）テレフタレートの精製方法
KR102504202B1 (ko) * 2022-07-11 2023-02-27 에스케이케미칼 주식회사 연속식 해중합을 통한 비스-2-하이드록시에틸테레프탈레이트의 제조방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002332379A (ja) * 2001-03-09 2002-11-22 Kubota Corp ポリエチレンテレフタレートの解重合方法
JP2003055300A (ja) * 2001-08-17 2003-02-26 Is:Kk ビス−β−ヒドロキシエチルテレフタレートの製造法
IT202000008935A1 (it) * 2020-04-24 2021-10-24 Garbo S R L Processo per depolimerizzare polietilene tereftalato (pet) tramite glicolisi, e relativo impianto per la sua realizzazione.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024014723A1 *

Also Published As

Publication number Publication date
CN118284592B (zh) 2025-04-15
TW202411325A (zh) 2024-03-16
CN118284592A (zh) 2024-07-02
JP7780639B2 (ja) 2025-12-04
US20240270928A1 (en) 2024-08-15
CN118284592B9 (zh) 2025-05-13
KR102504202B1 (ko) 2023-02-27
WO2024014723A1 (ko) 2024-01-18
JP2024538257A (ja) 2024-10-18
EP4375267A1 (de) 2024-05-29

Similar Documents

Publication Publication Date Title
EP4375267A4 (de) Verfahren zur herstellung von bis-2-hydroxyethylterephthalat durch kontinuierliche depolymerisation
EP4393911A4 (de) Verfahren zur herstellung von 5-hydroxymethylfurfural
EP4194417C0 (de) Verfahren zur herstellung von verbundzement
EP4077262C0 (de) Verfahren zur synthese von 4-valyloxybuttersäure
EP4146249A4 (de) Verbessertes verfahren zur herstellung von semaglutid
EP4430030C0 (de) Verfahren zur herstellung von epison-caprolactam durch depolymerisierung von polycaprolactam (pa6)
EP4389733A4 (de) Verfahren zur herstellung von 5-brom-2-chlorbenzoesäure als rohmaterial bei der synthese hypoglykämischer arzneimittel
EP4165165A4 (de) Verfahren zur synthese von poly-gamma-glutaminsäure
EP4101305C0 (de) Verfahren zur herstellung von walnussjoghurt
EP4200311A4 (de) Verfahren zur herstellung von cholsäurederivaten und ausgangsprodukte dafür
EP4574812A4 (de) Verfahren zur synthese von hochreinem n-lauroyl-lysin
EP4230634C0 (de) Verfahren zur herstellung von glufosinat-ammonium
EP4289806A4 (de) Verfahren zur herstellung von propylen
EP4146590A4 (de) Verfahren zur herstellung von säureanhydriden
EP4284187A4 (de) Verfahren zur herstellung von proteinreichen rückständen
EP4341336C0 (de) Verfahren zur depolymerisation von polyethylenterephthalat durch glykolyse
EP4164620A4 (de) Verbessertes verfahren zur herstellung von sitagliptin
EP3950128A4 (de) Verfahren zur herstellung von ungesättigtem aldehyd
EP4219587A4 (de) Verfahren zur herstellung von copolyester
EP4001381C0 (de) Verfahren zur herstellung von hochreinem biomethan
EP4370491A4 (de) Integriertes verfahren zur herstellung von trifluoriodmethan
EP4140992C0 (de) Verfahren zur herstellung von s-nikotin
EP4110747C0 (de) Verfahren zur effizienten herstellung von (bio)-alkandiolen
EP4313931C0 (de) Verfahren zur herstellung von hochwertigen fettsäurepolyolestern, insbesondere fettsäureglycerolestern
EP3695942C0 (de) Verfahren zur herstellung vorgefertigter betonprodukte

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20240222

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

A4 Supplementary search report drawn up and despatched

Effective date: 20250915

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: C07C 67/48 20060101AFI20250909BHEP

Ipc: C07C 69/82 20060101ALI20250909BHEP

Ipc: C08J 11/24 20060101ALI20250909BHEP